195795289 has 2 divisors, whose sum is σ = 195795290. Its totient is φ = 195795288.

The previous prime is 195795277. The next prime is 195795293. The reversal of 195795289 is 982597591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112529664 + 83265625 = 10608^2 + 9125^2 .

It is a cyclic number.

It is not a de Polignac number, because 195795289 - 2⁷ = 195795161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195795889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97897644 + 97897645.

It is an arithmetic number, because the mean of its divisors is an integer number (97897645).

Almost surely, 2^195795289 is an apocalyptic number.

It is an amenable number.

195795289 is a deficient number, since it is larger than the sum of its proper divisors (1).

195795289 is an equidigital number, since it uses as much as digits as its factorization.

195795289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2041200, while the sum is 55.

The square root of 195795289 is about 13992.6869828493. The cubic root of 195795289 is about 580.6762712191.

The spelling of 195795289 in words is "one hundred ninety-five million, seven hundred ninety-five thousand, two hundred eighty-nine".